| Company | Timeline | Status | |
| James Young Classic Car Storage Ltd Director • Surveyor | 14 Feb 2022←3 Years→Current | Active | |
| Why Investment Management Limited Director • Chartered Surveyor | 28 Jun 2017←8 Years→Current | Active | |
Coralino Limited Director • Chartered Surveyor | 6 Apr 2012←3 Years→4 Apr 2016 | Dissolved | |
| Clyde Films LLP Non-designated LLP Member • Unreported | 24 Feb 2006←19 Years→Current | Active | |
| Cherwell Films LLP Non-designated LLP Member • Unreported | 24 Feb 2006←19 Years→Current | Active | |
| Silverford Investments Limited Director • Chartered Surveyor | 26 Mar 2002←23 Years→Current | Active | |
| Whitmarsh Holt Young Limited Secretary • Chartered Surveyor | 16 Sep 1999←26 Years→Current | Active | |
| Whitmarsh Holt Young Limited Director • Chartered Surveyor | 16 Sep 1999←26 Years→Current | Active | |
